code: def _init_weights(self):
      init_bboxes = paddle.empty_like(self.init_proposal_bboxes.weight)
      init_bboxes[:, :2] = 0.5
      init_bboxes[:, 2:] = 1.0
      self.init_proposal_bboxes.weight.set_value(init_bboxes)
  
file_path: PaddleDetection/ppdet/modeling/proposal_generator/embedding_rpn_head.py
imports: import paddle
  from paddle import nn
  from ppdet.core.workspace import register
label_desc: Use image node_id 3 for calling the EmbeddingRPNHead obj's underlying member method code with example usage: obj._init_weights() without return types